I have a system with three zfs mirrors and 8 Gb ram.
For a long time the system is using more than 90% of the available ram, giving some of the services problems at times.
I initially thought this must be the zfs that used all that ram, but after a restart it goes for a couple of hours taking up only 1Gb of ram and then it starts to build up.
Now I am more inclined to suspect a memory leak somewhere...
I can see it on the page over performance statistic that a lot of memory is "used", but how do I do a drill down on what is using it?
I tried to examine the processes list but that did not give any real insights.
This is what my memory usage looks like over a couple of days (where I had some problems since yesterday forcing system restarts a couple of times making me notice these things.